About DC/OS 1.12.0

DC/OS 1.12.0 includes the following new features and capabilities:

New Features and Capabilities

Mesosphere Kubernetes Engine

High Density Multi-Kubernetes (HDMK) allows operators to take advantage of intelligent resource pooling when running multiple Kubernetes clusters on DC/OS. Compared with other Kubernetes distributions that run a single Kubernetes node per virtual machine, Mesosphere HDMK uses its intelligent resource pooling to pack multiple Kubernetes nodes onto the same server for bare metal, virtual machine, and public cloud instances, driving significant cost savings and resource efficiencies. Learn more about Kubernetes on DC/OS.

SDK

DCOS_OSS-2195 - Release cosmos v0.6.0.

Breaking Changes

DCOS_OSS-2256 - Removed the DC/OS web installer.

DCOS_OSS-3714 - Replaced dcos-metrics with Telegraf.

DCOS_OSS-4243 - By default, Marathon will decline offers for agents in maintenance mode. Requests to Marathon’s events API (/v2/events when queried directly) for standby instances no longer proxy, but instead responds with a redirect. Clients consuming Marathon’s events API should be updated to follow redirects. Component such as updated to versions that follow redirects; for example, Marathon-LB should be updated to at least version v1.12.3. See more details.